Joseph boch brien



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314mm mm Patented Jan. 22, 1924.

UNITED STATES v 1,481,410 PATENT OFFICE.

JOSEPH ROCH BRIEN, OF MONTREAL, QUEBEC, CANADA, ASSIGNOR OF ONE HALF T0 LYDIA PLAMONDON, NEE HARDY, 0F MONTREAL, CANADA.

MACHINE FOR Application filed September To all to 710% it may con-(262 72.:

Be it known that I, Josnrrr Roorr BRIEN, a subject of the King of Great Britain, residing at Montreal, Province of Quebec, C nada, have invented certain new and useful Improvements in Machines for Drying Peat; and I do hereby declare that the following is a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The present invention pertains to improvements in machines for drying peat or similar substances, and has for its object the provision of a machine of this character which receives the peat in its crude condition and compresses it automatically.

The machine receives the peat in a crude state and first presses it in order to expel the moisture. The peat is then dried on. an apron or conveyor which is movable in a stream of warm gas escaping from a special generator, no further operation being necessary than charging the machine with crude peat and removing the dried peat ready for the market.

Further objects and advantages of the invention will appear as the description continues, while others will be particularly pointed out. The invention is fully dis closed in the following description and in the accompanying drawings in which:

Figure 1 is a longitudinal sectional view of one end of the machine;

Figure 2 is a longitudinal section of the other end of the machine;

Figure 3 is a. section on the line of Figure 1; and,

Figure 4 is a perspective view showing the conveyor construction.

The machine comprises three principal parts, namely, a compressor 1, a drier 2, and a vapor or steam generator 3. The compressor shown in Figure 1 of the drawings consists of a hollow cylinder 4 at the upper part of which is formed a mouth or entrance opening 5. The cylinder is mounted in a suitable support 6 which not only supports the cylinder 4:, but also serves as a bearing 7 in which is mounted the shaft 8 of a double spiral 9 extending into the cylinder. On the shaft 8 is fixed a pulley 10 which is turned by a belt from any desired or suitable source of power, whereby the spiral member 9 is turned.

DRYING PEA'T.

29, 1922. Serial No. 591,394.

At the forward position of the cylinder 4- is supported a tapered neck member 11 in which is formed a plurality of longitudinal compartments 12 which are square in cros section (Figure by means of the perpendicularly intersecting longitudinal partitions 13. A chute 14 is suspended at the smaller end of the neck and is adapted to be cut oil therefrom by means of the plate valve 15. This valve is closed in case the charge of peat in the cylinder 4- is exceedingly wet. Under these conditions, the peat being wrapped within the cylinder gives off some of its moisture which escapes through the nipples 16.

The forward end of the chute 14: extends into the housing 17 of the conveyor system 2 in which is mounted the endless carrier 18 on the rotatable sprocket wheel 19. The conveyor consists of a pair of spaced sprocket chains 20 (only one of which is shown in Figure 4) which. support a plurality of separate latticed members 21. Each of the latter is provided with a perpendicular flange 22, also latticed, to avoid sliding of the material being carried. Beneath the endless conveyor is mounted a plate 23 which serves to support the peat when it is on the lower way. This plate is curved upwardly as at 2st at the forward end in order to retain the material while rounding the forward sprocket wheel, and is turned downwardly as at 25 at the rear end for a purpose later to be pointed out.

Beneath the forward end of the conveyordisposed the heating system 3 which consists of a boiler comprising inclined vapor tubes 26 surrounded by concentric water tubes 27. The latter are placed in communication with one another at their ends by means of the headers 28, the lower one of which is fed by the water inlet pipe 29. An inclined steam pipe 30 extends from the upper header to a steam chest 31 mounted in the top of the casing 17. A steam supply pipe 32 extends from the steam chest to the lower part of the furnace where it enters an air passage 33 whereby a mixture of air and steam is drawn into the fire box. The fuel inlet consists of a double wall pipe 341- within the central member 35 of which is disposed a steam pipe 36 closed at its inner end as at 37 The space between the two outer pipes also receives steam and this space is likewise closed at its inner end. The peat,

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which is used as fuel, is forced through the space between the two inner, pipes from a;

: ence of the mixture of air and dry steam entering from the pipes 32 and 33. Some of thisv mixture is utilized in the combustion process, as is well known in the art, but the major portion serves to dry the material carried'through the conveyor system 2. The

mixture after having become saturated with moisture from the eat escapes'through theflue 43 at the rear end of the conveyor housing. A baflle, plate 44 isadjustable along the l inclined water tube and is actuated by means of the link45. A by-pass 46 establishes communication between the 'steam chest 31 and the lower header 28, so that a water gauge 47 may be inserted between it and the steam supply pipe 32.

A sprayer- 50 is disposed adjacent the turned end 25 and communicates with a source of oil, illustrated by the tank or barrel 51, by means of the piping 52. As the peat reaches the end of its course on the conveyor, having been freed of its moisture content, it is treated with oilfrom thesprayer 50 as it passes over the lip 25. From the latter it passes into a chamber 53 from which it is withdrawn through a door 54, shown in dottedlines, and is now ready for use.

\Vhile a specific embodiment of the invention has been illustrated and described, it is to be understood that various alterations in the details of construction may be made without departing from the spirit of the invention as indicated by the appended claims.

Having thus fully described the invention, what I claim as new and desire to protect by Letters Patent is 1. In-a machine for drying peat, a conveyor, a water heater disposed beneath said conveyor, a steam chest communicating with said heater an air passage at the lower portion of said heater, and a steam supply pipe extending from the steam chest to the air pipe.

2. A machine for drying peat comprising a conveyor, a water heater beneath said conveyor, a steam chest in communication with said heater, a fire grate in said heater, an air pipe leading to the lower portion of said fire grate, and a feed supply pipe extending from the steam chest to the air pipe.

3. In a machine for drying peat, a conveyor, means for heating the peat on said conveyor, and means at the end of the conveyor for spraying oil.

4. A machine for drying, peat comprising a conveyor, a supporting plate beneath said conveyor, said plate'having a downwardly extending lip formed at its rear end, a heat ing' device disposed beneath said conveyor, and a sprayer disposed adjacent said lip.

In witness whereof I have hereunto set my hand.

JOSEPH ROCH. BRIEN. 

